The Bletchley Circle: San Francisco - Season 1 Episode 04: Madhouse

Description
In an exciting atmosphere, the series follows a series of mysterious murders occur in San Francisco and some of them happen by the same way. After many fail attempts to catch the perpetrators, the investigators decided to ask the help of two professional code breakers, Millie and Jean, who lately come to San Francisco starting their work by the case of murdering Claire Hopkins and two identical of it.